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中国DOS联盟论坛 The time now is 2026-10-31 12:08 |
47,815 topics / 349,930 posts / today 0 new / 48,290 members |
| DOS开发编程 & 发展交流 （开发室） » Experts, take a look: about the negative checksum in the EXE file format |
| Printable Version 747 / 2 |
| Floor1 sysnet | Posted 2003-12-21 00:00 |
| 初级用户 Posts 2 Credits 107 | |
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I want to handcraft a few DOS EXE files. I've studied them for many days, but I still can't figure out the negative checksum in the EXE header format. How is it calculated?
Sigh, I've looked up some materials too and still couldn't find it. Frustrating. |
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| Floor2 sysnet | Posted 2003-12-24 00:00 |
| 初级用户 Posts 2 Credits 107 | |
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Sheesh, nobody answered?
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| Floor3 aria | Posted 2003-12-24 00:00 |
| 高级用户 Posts 243 Credits 924 | |
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Is the negative checksum just the checksum with the bits inverted?
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